Currently on eBay

https://tinyurl.com/y8ure6ke

Bethlehem Steel Company car sales dept.  blueprint.  Titled--General Arrangement--50 ton hopper.  34 foot hopper.  Dated 1955. Drawings include--top, end, side and bottom elevations.  This is a company internal use, paper copy. Has been folded. Size is 32 x 60 inches.

The order number is 220 which from the RP Cyc article in Issue 1 the order was from the Reading.

https://www.ebay.com/itm/232676265409?ssPageName=STRK%3AMEBIDX%3AIT&fromMakeTrack=true

Bob Witt