I don't have a picture of a mower but here a some pictures of the wrenches for Pennsylvania Lawn Works wrenches from a 1932 parts list that was printed in the Dec. 2000 Missouri Valley Wrench Club Newsletter.
I don't know if the Pennsylvania Lawn Mower Works and the Philadelphia Lawn Mower Co. were the same company or just what the connection if any.
Note that the list shows three variations of the 1036A wrench.
(http://i222.photobucket.com/albums/dd3/buswrench/message-board/penn-lawnpower-wrenches.jpg)