Alvin 12 Folding Parallel Rule

Alvin Rolling Parallel Ruler – 12″ (312)

Logical Reasoning: 2. Alvin, Kelvin & Melvin are a kicker, a

Alvin 312 Rolling Parallel Ruler, 12 Inch : : Office Products

Alvin 12” Triangular Scale Ruler No. 110P Architect Drafting U.S.

Sold at Auction: Stanley Folding Rules Reference Book

Drafting Tools - Rulers - Sam Flax Atlanta

Alvin A1500-18 18 Folding Parallel Rule : : Office Products

FOLDING PARALLEL RULE Clear Transparent 12” Alvin Bloomfield CT A1500-12

Parallel Rule Board (20 x 26) (W70176)