Vintage A.W. Faber Castell Pocket Slide Rule Model 61/98/319 16.6cm R.L. Esson & Co. Marked

A classic and collectible A.W. Faber Castell pocket slide rule, model 61/98/319, featuring finely detailed scales and cursor, housed in its original hard black case with gold-embossed logo. This particular piece is marked "R.L. Esson & Co.", adding a layer of historical interest for collectors.

Details:

• Brand: A.W. Faber Castell

• Model Number: 61/98/319

• Length: 16.6cm

• Width: 4cm

• Material: Likely celluloid over wood

• Cursor: Framed glass cursor

• Case: Original hard black case with slide-in lid 

Condition Notes:

• Slide rule appears complete and legible with minor surface wear

• Case shows wear consistent with age, with visible tape repairs and some rubbing on the logo

• Marked "R.L. Esson & Co.", likely the retailer or distributor

A fine example of mid-century precision engineeringperfect for vintage stationery collectors, slide rule enthusiasts, or for display.