I made this image to help identify the years of a Penn Seaford - Is their any other info I should add to this or is any info not accurate.
The actual history is simpler than what you have created. It can be followed in the catalogs with a little help from the first Patent filings.
1--> Patent Filings--July 30, 1932--for the Models F & K. There is no earlier documentation for any Penn reel that I have seen.
2--> The 1933 Catalog--Long Beach, Sea Hawk, Bay Side & the late release Sea Ford (not seen in the catalog) --these are three pillar reels
3--> The 1934 Catalog-- Long Beach, Bay Side, Coronado, Ocean Side, Sea Hawk, Bridge City, Newport & Sea Ford-- these are all four pillar reels with no top pillar. Two pillars forward and two aft. They are all open top reels.
The dome clicker button can only be used for any historical definition on the Model F & K. Penn used up every part during the Depression. Domed clicker buttons after 1932 have been found on all Penn models, presumably used on all models randomly until their supply was used up. Rarely seen after 1933.