[Hammarlund] Knob needed

[DJED1 at aol.com]

I picked up a nice SP-400 which is complete except for the two tuning  
knobs.  The original owner had replaced the two dinky knobs with some  bigger 
ones.  Unfortunately, I want to restore the radio to original,  including 
these knobs.  The originals were only used on the 1940s SP-400X  and HQ-129X.  
Anyone have one or two lying in the junk box that they would  like  to sell?
Ed  W2EMN