Two (2 pcs) NOS vintage 1pF 1000V Disc Ceramic Capacitors, made by Sprague in 60s

1 pF 1000V - 0.000001mfd / 1KV

8 mm (5/16") diameter
30mm (1 1/8") leads

They are marked 1.0 with number 2 in circle as clearly shown in photos!