Mi.No. 437/438, authors trial of engraver Karl Seizinger Description: Mi.No. 437/438, authors trial of engraver Karl Seizinger. Rare and in excellent quality. Mi.No. 437/438, authors trial of engraver Karl Seizinger Auction: Aukcija br. 48 - Filatelija i razglednice Catalog No: 841 Category: Kingdom of Yugoslavia Quality: (*) Current offer is at 390EUR. In order to place your bid your offer needs to be at least 410EUR or higher. Please place your bid: Other items from the category: Kingdom of Yugoslavia 889 20 EUR ✉ 890 30 EUR ←1234