1st variation.
Silver, gilt, enamel.
Marked with maker's mark "ВХП/VHP" and Moscow district assay office silver hallmark of shovel form from 1908+ time period [delta, kokoshnik facing right, 88].
Silver badges.
Silver, enamel.
Marked PV /ПВ/ + Leningrad district assay department mark (alpha, female head in a kokoshnik to the right, 84).
Size 22х17 mm
Weight 3.51 g.
Same marks on the screw plate.
dobrolet society badge
dobrolet society of the voluntary air fleet
ussr badge dobrolet
жетон-брошь добролет
знакдобролётзнакдобролёта в форме самолёта
знак самолёт добролёт
cavaliers of dobrolyot badge
photo of dobrolyot badge
жетон добролет
жетон-брошь добролет
знакдобролётзнакдобролёта на фото
фотография со знаком добролёта
Such dimplomas were issued together with these badges https://asiamedals.info/threads/award-badge-of-the-dobrolet-society.24599/
Size 41 x 27 cm.
Diploma to Mikhail Isaakovich Hollandskyi.
Badge No. 3826.
Standard text.
“The Russian Society of Voluntary Air Fleet “Dobrolet”, represented by...