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Fred Q

Not the old silkspan, but doctor's exam paper that is an acceptable substitute:

Lightweight silkspan = https://www.amazon.com/dp/B0017TMTCA/?coliid=I228GV3WS5HA4F&colid=DY6RQZPXBG3L&psc=1&ref_=lv_ov_lig_dp_it
Medium silkspan = https://www.amazon.com/dp/B071J8H8KW/?coliid=I2F0ZLMLOR93XI&colid=DY6RQZPXBG3L&psc=1&ref_=lv_ov_lig_dp_it

   And if you do a search on the forums here, weight comparisons of each part number of TIDI brand exam table paper was compared to know examples of K&S silk span. I forget which K&S products for sure, but believe it was GM and SGM. I always have a still do get the K&S nomenclature for their silk span weights mixed up. Note that the prices are for several rolls that are 125 feet long! Enough to split or share if so desired.

  Type at you later,
  Dan McEntee