Los 6593
1919, 1st. Musvat Issue 5 rbl. tied by cds. "ЕЛИСАВЕТПОЛЬ 1 3 21" to invalid Russia Kerenski postal stationery 5k. addressed to Prof. Kaigorodov, head of the forestry research institute of the RSFSR, at this time ordinary mail up to 15g was postage free in the RSFSR and this was also applied in Azerbaijan (Cerese, Azerbaijan section A, p.38). The 5 rbl. paying the applicable registered fee, three small archive holes at left, a very attractive and to our knowledge unique usage during the free-frank period
