Does anyone have, or is able to get, a photo of the letter space dog spring of a Caligraph No. 4? I believe it's part 88A on page 14 of the No. 3 Special user manual. The dog on mine flops down with no spring tension so it doesn't engage the rack, so the carriage shoots to the left. I don't see any hide nor hair of any springs or other mechanism that might've provided any tension to keep it engaged with the rack.

Goal is to make a new spring, but ideally I'd like to know what a real one looks like first or if that's even the right part.