1960s Fender Champ, Modded

Probably from the late 60s (the number on the tag in the back isn't the year, I found out!). Highly modded by well-respected modder Michael W Klein. He has this to say about it:These are the things I remember doing:swapped OT to better Heyboer onereplaced filter capsadded midrange controladded negative feedback controlslight changes in voicing to improve clean and overdriven tonesstock 8” replaced with Weber 10F150 (I believe that’s the model) 10” speakerimproved grounding for safety and lower noise3-prong power cableI am pretty sure I shipped it with vintage tubes, tooIt also includes the leather cover. Great, great amp that I wish I could keep.