6.3 Youngest Rules

The 25 youngest rules in the collection are presented below. For items in this list for which only a date range or educated guess (circa) is known, the earliest year is used.

Maker Model Year Type Mat L0 Lx
Pickett X-3
1975 L Al 10 10
Relay-Ricoh 151
1974 L bb 10 10
C-Thru S-96
1973 C pl 15 6
Pickett N902-ES 1973 L Al 10 10
Aristo 867U 1972 L pl 5 5
Dietzgen 1776 1972 L pl 5 5
Faber-Castell 52/82 1972 L pl 10 10
Faber-Castell 62/83 1972 L pl 5 5
Hemmi 258 1972 L bb 10 10
Relay-Ricoh 150 1972 L bb 10 10
Sterling 587 1972 L pl 5 5
Sterling 694 1972 L pl 10 10
Sterling 694 1972 L pl 10 10
Hemmi 258 1971 L bb 10 10
Hemmi Pocket Versalog II 1971 L bb 5 5
Reiss 3223 Progress 1971 L Al 10 10
Blundell Rules Limited 506 Academy Duplex 1970-1980 L pl 10 10
Dietzgen 1771 1970-1972 L pl 5 5
Aristo 958 1970 L pl 10 10
Boots Ringplan Precision Log Log
1970 L pl 5 5
C-Thru PS-79
1970 C pl 16 6
Concise 28
1970 C pl 8 4
Faber-Castell 2/83N 1970 L pl 10 10
Fearns Calculators A13
1970 C pl 12 5
K&E 68-1892
1970 L pl 10 10