Old Ladder Scaffold Jacks (3 Sets) - $1 (Alamo Heights)

Clearing out a old shop and have several sets of old Ladder Jacks for sale.
I have 3 full pairs and 1 single jack.
Selling for $40 per pair and $20 for the single jack, or will sell all 7 jacks together for $135.
Please see photos for the 4 sets (labelled A, B, C, and D).
If interested, please email with contact details.
English only please.
Items are located near Rittiman and Harry Wurzbach Rd.
Note, I'm cannot verify the safety condition of the jacks.
They are rusty, but seem to be in good condition.