Prize Medals Of The All-Union Agricultural Exhibition.

[Lapa]

Guys,

Based on the various discussions that have taken place, and on the medals I have seen or know about, here is my proposed classification of these interesting medals.
Important remark about suspensions: I have detailed classification for those types and varieties which have actually been observed. When no varieties for suspensions are mentioned, it is assumed (until proven otherwise) that only one type of suspension was used and exists. This classification allows for later inclusion of new subtypes (ie: suspensions :D ).
So, without further awaiting, here goes.

All-Union Agricultural Exhibition ( BCXB )

GOLD MEDAL:

Large - 32mm

Type 1 - Gold (10K), Dated & Numbered

T1 V1 - "1939"
T1 V2 - "1940"

Type 2 - Gold (10K), No Date

T2 V1 - Numbered
T2 V2S1 - No Number, X on tractor grille
T2 V2S2 - No Number, no X on tractor grille

Small - 26mm

Type 1 - Gold (10K), Dated & Numbered

T1 V1 - "1939"
T1 V2 - "1940"

Type 2 - Gold (10K), No Date

T2 V1 - Numbered
T2 V2S1 - Not Numbered, X on tractor grille
T2 V2S2 - Not Numbered, no X on tractor grille

Type 3 - Gold-plated Brass, "За Успехи" on back

T3 V1S1 - X on tractor grille, Screwback
T3 V1S2 - X on tractor grille, pinback
T3 V2S1 - No X on tractor grille, Screwback
T3 V2S2 - No X on tractor grille, Pinback

Type 4 - Gold-plated Brass, "Участнику" on back

T4 V1S1 - X on tractor grille, Screwback
T4 V1S2 - X on tractor grille, pinback
T4 V2S1 - No X on tractor grille, Screwback
T4 V2S2 - No X on tractor grille, Pinback

SILVER MEDAL:

Large - 32mm

Type 1 - Dated & Numbered

T1 V1 - "1939"
T1 V2 - "1940"

Type 2 - No Date

T2 V1 - Numbered
T2 V2S1 - No Number, X on tractor grille
T2 V2S2 - No Number, no X on tractor grille

Small - 26mm

Type 1 - Dated & Numbered

T1 V1 - "1939"
T1 V2 - "1940"

Type 2 - No Date

T2 V1 - Numbered
T2 V2S1 - Not Numbered, X on tractor grille
T2 V2S2 - Not Numbered, no X on tractor grille

Marc