diff --git a/res/models/model/railroad/Piket/Piket_1_9.mdl b/res/models/model/railroad/Piket/Piket_1_9.mdl
index 3deab00..0f0cb6a 100644
--- a/res/models/model/railroad/Piket/Piket_1_9.mdl
+++ b/res/models/model/railroad/Piket/Piket_1_9.mdl
@@ -54,7 +54,7 @@ return {
 		},
 		availability = {
 			yearFrom = 1922,
-			yearTo = 1991,
+			----yearTo = 1991,
 		},
 		cost = { price = 1000 },
 		signal = {
diff --git a/res/models/model/railroad/Piket/Piket_2_8.mdl b/res/models/model/railroad/Piket/Piket_2_8.mdl
index 17c16c2..5f2b98f 100644
--- a/res/models/model/railroad/Piket/Piket_2_8.mdl
+++ b/res/models/model/railroad/Piket/Piket_2_8.mdl
@@ -54,7 +54,7 @@ return {
 		},
 		availability = {
 			yearFrom = 1922,
-			yearTo = 1991,
+			--yearTo = 1991,
 		},
 		cost = { price = 1000 },
 		signal = {
diff --git a/res/models/model/railroad/Piket/Piket_3_7.mdl b/res/models/model/railroad/Piket/Piket_3_7.mdl
index 47099d0..c6fbfd6 100644
--- a/res/models/model/railroad/Piket/Piket_3_7.mdl
+++ b/res/models/model/railroad/Piket/Piket_3_7.mdl
@@ -54,7 +54,7 @@ return {
 		},
 		availability = {
 			yearFrom = 1922,
-			yearTo = 1991,
+			--yearTo = 1991,
 		},
 		cost = { price = 1000 },
 		signal = {
diff --git a/res/models/model/railroad/Piket/Piket_4_6.mdl b/res/models/model/railroad/Piket/Piket_4_6.mdl
index d77a288..5d57584 100644
--- a/res/models/model/railroad/Piket/Piket_4_6.mdl
+++ b/res/models/model/railroad/Piket/Piket_4_6.mdl
@@ -54,7 +54,7 @@ return {
 		},
 		availability = {
 			yearFrom = 1922,
-			yearTo = 1991,
+			--yearTo = 1991,
 		},
 		cost = { price = 1000 },
 		signal = {
diff --git a/res/models/model/railroad/Piket/Piket_5_5.mdl b/res/models/model/railroad/Piket/Piket_5_5.mdl
index 2b66734..4f02605 100644
--- a/res/models/model/railroad/Piket/Piket_5_5.mdl
+++ b/res/models/model/railroad/Piket/Piket_5_5.mdl
@@ -54,7 +54,7 @@ return {
 		},
 		availability = {
 			yearFrom = 1922,
-			yearTo = 1991,
+			--yearTo = 1991,
 		},
 		cost = { price = 1000 },
 		signal = {
diff --git a/res/models/model/railroad/Piket/Piket_6_4.mdl b/res/models/model/railroad/Piket/Piket_6_4.mdl
index d5927d9..d4ed456 100644
--- a/res/models/model/railroad/Piket/Piket_6_4.mdl
+++ b/res/models/model/railroad/Piket/Piket_6_4.mdl
@@ -54,7 +54,7 @@ return {
 		},
 		availability = {
 			yearFrom = 1922,
-			yearTo = 1991,
+			--yearTo = 1991,
 		},
 		cost = { price = 1000 },
 		signal = {
diff --git a/res/models/model/railroad/Piket/Piket_7_3.mdl b/res/models/model/railroad/Piket/Piket_7_3.mdl
index ea66373..39ec566 100644
--- a/res/models/model/railroad/Piket/Piket_7_3.mdl
+++ b/res/models/model/railroad/Piket/Piket_7_3.mdl
@@ -54,7 +54,7 @@ return {
 		},
 		availability = {
 			yearFrom = 1922,
-			yearTo = 1991,
+			--yearTo = 1991,
 		},
 		cost = { price = 1000 },
 		signal = {
diff --git a/res/models/model/railroad/Piket/Piket_8_2.mdl b/res/models/model/railroad/Piket/Piket_8_2.mdl
index ea3cd12..d56063a 100644
--- a/res/models/model/railroad/Piket/Piket_8_2.mdl
+++ b/res/models/model/railroad/Piket/Piket_8_2.mdl
@@ -54,7 +54,7 @@ return {
 		},
 		availability = {
 			yearFrom = 1922,
-			yearTo = 1991,
+			--yearTo = 1991,
 		},
 		cost = { price = 1000 },
 		signal = {
diff --git a/res/models/model/railroad/Piket/Piket_9_1.mdl b/res/models/model/railroad/Piket/Piket_9_1.mdl
index 7c8f766..cc04426 100644
--- a/res/models/model/railroad/Piket/Piket_9_1.mdl
+++ b/res/models/model/railroad/Piket/Piket_9_1.mdl
@@ -54,7 +54,7 @@ return {
 		},
 		availability = {
 			yearFrom = 1922,
-			yearTo = 1991,
+			--yearTo = 1991,
 		},
 		cost = { price = 1000 },
 		signal = {
diff --git a/res/models/model/railroad/Piket/Piket_ctan_put_1_2.mdl b/res/models/model/railroad/Piket/Piket_ctan_put_1_2.mdl
index 236c2bd..4fe2dd2 100644
--- a/res/models/model/railroad/Piket/Piket_ctan_put_1_2.mdl
+++ b/res/models/model/railroad/Piket/Piket_ctan_put_1_2.mdl
@@ -53,7 +53,7 @@ return {
 		},
 		availability = {
 			yearFrom = 1922,
-			yearTo = 1991,
+			--yearTo = 1991,
 		},
 		cost = { price = 1000 },
 		signal = {
diff --git a/res/models/model/railroad/Piket/Piket_ctan_put_3_4.mdl b/res/models/model/railroad/Piket/Piket_ctan_put_3_4.mdl
index 99a82df..2a875b9 100644
--- a/res/models/model/railroad/Piket/Piket_ctan_put_3_4.mdl
+++ b/res/models/model/railroad/Piket/Piket_ctan_put_3_4.mdl
@@ -53,7 +53,7 @@ return {
 		},
 		availability = {
 			yearFrom = 1922,
-			yearTo = 1991,
+			--yearTo = 1991,
 		},
 		cost = { price = 1000 },
 		signal = {
diff --git a/res/models/model/railroad/Piket/Piket_ctan_put_5.mdl b/res/models/model/railroad/Piket/Piket_ctan_put_5.mdl
index c072897..d818e87 100644
--- a/res/models/model/railroad/Piket/Piket_ctan_put_5.mdl
+++ b/res/models/model/railroad/Piket/Piket_ctan_put_5.mdl
@@ -53,7 +53,7 @@ return {
 		},
 		availability = {
 			yearFrom = 1922,
-			yearTo = 1991,
+			--yearTo = 1991,
 		},
 		cost = { price = 1000 },
 		signal = {
diff --git a/res/models/model/railroad/Piket/Piket_km.mdl b/res/models/model/railroad/Piket/Piket_km.mdl
index 103cc76..d3a3b7b 100644
--- a/res/models/model/railroad/Piket/Piket_km.mdl
+++ b/res/models/model/railroad/Piket/Piket_km.mdl
@@ -53,7 +53,7 @@ return {
 		},
 		availability = {
 			yearFrom = 1922,
-			yearTo = 1991,
+			--yearTo = 1991,
 		},
 		cost = { price = 1000 },
 		signal = {
diff --git a/res/models/model/railroad/Piket/Piket_predel.mdl b/res/models/model/railroad/Piket/Piket_predel.mdl
index cf9316d..aa00726 100644
--- a/res/models/model/railroad/Piket/Piket_predel.mdl
+++ b/res/models/model/railroad/Piket/Piket_predel.mdl
@@ -53,7 +53,7 @@ return {
 		},
 		availability = {
 			yearFrom = 1922,
-			yearTo = 1991,
+			--yearTo = 1991,
 		},
 		cost = { price = 1000 },
 		signal = {