Jackson Brothers mini air spaced capacitor 4mm shaft 5439/5.00 3.5-20pf

These are the old Jackson C16 series of capacitors that by pure chance I found in an old stock box

they are 3.5-20pf with a 4mm shaft

i am supplying without the nut though if i find one it will be included  I have some other values with or without a shaft

listed elsewhere