diff --git a/Two-way-Mirror-Vendors.md b/Two-way-Mirror-Vendors.md
index 43aa0bf..19daf57 100644
--- a/Two-way-Mirror-Vendors.md
+++ b/Two-way-Mirror-Vendors.md
@@ -23,7 +23,8 @@ There are no guarantees to their legibility, and if you have any complaint about
 
 | Vendor Name | Custom Size? | Country | Comments |
 |:----------- |:------------ |:------- |:-------- |
-| [SKLOMAT](http://www.sklomat.cz/produkty/zrcadlospec/spionazni-polopropustne-zrcadlo)| yes (Max Size: 315 cm x 220 cm) | Czech Republic, Krnov | |
+| [SKLOMAT](http://www.sklomat.cz/produkty/zrcadlospec/spionazni-polopropustne-zrcadlo)| yes (Max Size: 315 cm x 220 cm) | Czech Republic, Krnov | has a slight patina |
+| [Stavebni sklo](http://www.stavebni-sklo.cz/polopropustna-zrcadla.php)| yes (Max Size: 300 cm x 200 cm) | Czech Republic, Praha | they have 20% transparency even though not listed|
 | [Glas Star](https://www.glas-star.de/spionspiegelnachmass/chrome-spy-spiegel/) | yes | Germany, Bochum | |
 | [Präzisions Glas & Optik](https://www.pgo-online.com/intl/spy-mirror.html) | yes | Germany, Iserlohn | |
 | [Spiegel-Shop](https://www.myspiegel.de/spionspiegel-pg-2102.html) | yes | Germany , Kassel | |