[HGabor]

I doubt it too. This is an A-20C (B-3), where black No.28 on the nose corresponds to ~ S/N: 41-19140 or so. On October 1, 1944 the 17th Air Army had only the following A-20C Bostons in their 244 BAD regiments (260, 449, 861 BAP):

41-19353, 42-33151, 42-33294, 42-33302, 42-33326, 42-33348, 42-33359.

UA-20C (trainer versions) in 17 VA, 244 BAD service by October 1, 1944: ...416, ...802, 41-19623, 41-19627, 41-19291, 41-19346.

But eg. on August 1, 1942 the 17 VA, 861 BAP had similar A-20C Bostons to 41-19140:

41-19115
41-19132
41-19134
41-19138
41-19153
41-19154
41-19256
41-19278
41-19280
41-19290
41-19320
41-19324
41-19326
41-19349
41-19592,

so from that "early" range. If 41-19140 belonged to the 244 BAD indeed, then the date and location (Bulgaria) is incorrect, - alias way too late, and definitely nothing like that between October 1, 1944 - July 1, 1945. Another similar, early A-20C, S/N: 41-19142 belonged to 277 BBAP, - but of course, 277 BBAP was not in the 17th Air Army.

Gabor