To finish with Bulgaria:
7 PzKw IVh - PzKpfw IV (Maybach T-IV) were devoid of hull skirts soon after arrival - there are no photos of tanks with hull skirts at all, especially from their combat service. Also the photo shows the tank without hull skirts. I'd remove this unit, since we have 10 PzKw IVg - or one of them should be early tank with Dunkelgelb camo (icon 1409, 7/43-12/44), and the other - late tank (green icon 1408, from 1/45) and with a photo with shield markings.
There could be also added post-war tank, with turret skirts removed as well - from 6/45, although according to one photo, they might have appeared as soon as 3/45. I'm ataching some photos.
BTW: unit 10 PzKw IVg has too small turret side and rear armor, not counting skirts.
45 PzKw IIIn - there is no info about Pz III in Bulgarian service at all, especially as soon as 1943.
53 SdKfz 223 (Fu) - I'm attaching better photo - current one is in fact turretless SdKfz 261 captured by the Soviets
151,152 Drski Class - better photo
http://vimpel.boinaslava.net/images/pic_Hrabri2.jpg
http://vimpel.boinaslava.net/images/pic_Hrabri.jpg
(BTW: an interesting early 20th century torpedo boat, preserved in a museum in Varna)