1918 German field post of bicycle batallion “Radfahrer-Batl. No.5”, Reval/Tallinn-Bad Soden
Green unit cachet reads “Radfahrer-Batl. No.5”. FPO 298 = 2. Radfahrer-Brigade. Interesting and scarce bicycle unit.
The viewcard side is embossed/3D view of Tallinn. The card is originally glued together from 2 sides, embossed front side and plain back side with address lines.