возможно, что и заводской.
Я уверен в этом.
Посмотрите на другие известные заводские номера Бе-6:
2 60 01 01 not known Be-6 Soviet Navy h/o by NII-15 to 403 odrap at Gryaznaya bay in summer 1952; used for service trials at Poti (977 omdrap) in 1953/54
2 60 01 02 not known Be-6 Soviet Navy used for service trials at Poti (977 omdrap) in 1953/54
2 60 01 03 "10" Be-6 Soviet Navy used for check trials 07jul/30aug52 at Taganrog and Poti (at the base of the 1772 orap), which it did not pass, and tested again 29dec53/18jan54
2 60 02 01 not known Be-6 Soviet Navy used for service trials at Poti (977 omdrap) in 1953/54
2 60 02 02 not known Be-6 Soviet Navy used for service trials at Poti (977 omdrap) in 1953/54
2 60 02 03 not known Be-6 Soviet Navy used for service trials at Poti (977 omdrap) in 1953/54
2 60 03 01 not known Be-6 Soviet Navy used for service trials at Poti (977 omdrap) in 1953/54
2 60 03 05 not known Be-6 Soviet Navy used for service trials at Poti (977 omdrap) in 1953/54
3 60 04 01 not known Be-6 Soviet Navy used for service trials at Poti (977 omdrap) in 1953/54
3 60 04 02 not known Be-6 Soviet Navy used for service trials at Poti (977 omdrap) in 1953/54
3 60 04 03 not known Be-6 Soviet Navy used for check trials 16jul/10sep53 by NII-15
4 60 12 01 not known Be-6 Soviet Navy converted by OKB-49 to, see next line
"15" Be-6SS Soviet Navy photo taken at Poti in 1958; SAR aircraft, sole Be-6SS built; service trials conducted by NII-15 11jun/18jul58 at Poti at the base of the 977 omdrap, tested again by NII-1516may/21jul60 at Donuzlav
4 60 14 03 not known Be-6 Soviet Navy received additional aerials for communications with submerged submarines within the "Liner" (izd. KL) project in jan/feb67; trials conducted with the 318 oplap at Donuzlav; sole such aircraft built
4 60 16 01 not known Be-6 Soviet Navy converted by OKB-49 in 1953 to, see next line
"14" yellow Be-6PLO Soviet Navy photo taken in 1958; ASW aircraft with magnetic anomaly detector; trials conducted jul/nov53 at Poti
5 60 16 02 not known Be-6 Soviet Navy first aircraft with a de-icing system and a modified nose
6 60 22 03 CCCP-N611 Be-6K Polyarnaya Aviats.trf 1956 in green/light blue c/s with small 'Polyarnaya Aviatsiya' titles below the cockpit; in fleet list mar58; photo exists