Hull Number: SC 41

Photos of submarine chaser SC 41. The second photo is  a blow-up  of a section of a photo showing a group of chasers in Lisbon. SC 41 is visible on the crow's nest canvas.

Photo Set - click to view large versions: 

SC 41 and others in Lisbon. G.S. Dole Collection
SC 41. T. Woofenden Collection