My husband is very knowledgeable with artillery, etc. and he said he's never heard of a self-propelled gun like that. He said, why would it be self-propelled? Maybe that was a misunderstanding?
505th Coast Artillery (AA) Regiment (Mobile) Constituted in OR as 505th Arty (AA), CAC, 7-29-21. Organized in December 1921 at Cincinnati. Redesignated 505th CA (AA) Regt 6-3-24. Withdrawn from OR and allotted to RA as inactive 10-1-33. Redesignated 77th CA (AA) Regt (Cld) 8-1-40. August 2009 The Coast Defense Journal Page 73 505th Coast Artillery (AA) Regiment (Mobile) Activated in AUS 6-1-42 at Cp. Edwards, MA, and moved to Indiantown Gap Military Reservation, PA, 11-29-42 and staged for overseas deployment. Departed NYC POE 12-8-42, arrived England 12-13-42. Moved to North Africa 3-4-43 and landed in Salerno, Italy, 9-9-43. Inactivated Santa Maria, Italy, 3-14-44. HHB redesignated HHB 505th AAA Gp; 1st Bn redesignated 87th AAA (Gun) Bn; 2nd Bn redesignated 900th AAA (AW) Bn; 3rd Bn disbanded.
http://olive-drab.com/idphoto/id_photos_90mm_aaa.php
View of 90 mm anti-aircraft gun emplacement, Okinawa, 1945.
Proud Daughter of Walter (Monday) Poniedzialek
540th Engineer Combat Regiment, 2833rd Bn, H&S Co, 4th Platoon
There's "No Bridge Too Far"