GDYNIA-AMERIKA LINJE ZEGLUGOWE SPÓLKA AKCYJNA.

Merchant Ships 1942 shows a black trident on the funnel but blue on the flag; Ships & the Sea instead specifies blue on the funnel.

Jordan does not specify the funnel-shield details. The Brazilian website’s 1950 livery account shows a black trident.

Brown 1943 shows a narrow red band on the flag. Rosanoski deliberately uses a darker funnel yellow than may have applied to make the white edging visible.