45, CORNHILL, E.G., AND 122, REGENT STREET, W., LONDON. 



339 



FIG. 1561, 



1561 Rolling Parallel Rules, best, with full diviled Ivory or 



Metal Edges and Boilers : (fig. 1561) 



6-in. 9-in. 12-in. 15-in. 18-in. 



13s. 16s. 6d. 21s. 25s. 30s. 



1562 Parallel Rules, Rolling Brass, best : : 



6-in. 12-in. 18-in. 24-ir. 



12s. 6d. 25s. 38s. 50s. 



1563 Ditto ditto, German Silver : 



6-in. 12-in. 18-in. 24-in. 



18s. 36s. 55s. 72s. 



1564 Mahogany Case for ditto : 



6-in. 12-in. 18-in. 24-in. 



4s. 6d. 6s. 8s. 10s. 



1565 Architects' Scales, 12-inch Boxwood .... 



1566 Ditto ditto 12-inch Boxwood, fully divided 



1567 Ivory Architects' Scales, 12-inch (fig. 1567) . 



1568 Ditto ditto 6 -inch . .... 



1569 Ivory Architects' Scales, 12-inch best, fully divided, from 



^ to 3 inches, containing 16 scales .... 



Each. 

 s. d. 



FIG. 1567. 



1570 Six-inch ditto ditto 



1571 Chain or Plotting Scales, Best Ivory, 12-inch 80 to 100 



1572 Off-sets for ditto . Best Ivory, 2-inch 



1573 Chain or Plotting Scales, best Ivory, 12-inch, 10 to 60 



chains to the inch . . 



1574 Six-inch ditto ditto, best Ivory . 



1575 Off-set Scales, Ivory, 10 to 60 . . . from 



1576 Chain or Plotting Scales, best Boxwood, 12-inch, 



10 to 60 . 



1577 Ditto ditto, 12-inch Best Boxwood, ditto 80 to 100 



1578 Ditto ditto, 6-inch Boxwood ditto .... 



1579 Off-sets, Boxwood, 10 to 60 



1580 Off-sets, Boxwood, 80 to 100 



1581 Complete sets of best Ivory Plotting Scales and Off-sets, 



12-inch, from 10 to 100 chains to the inch, in 

 mahogany case, with lock and key 



1582 Complete sets of best Boxwood Plotting Scales, 12-inch 



with off-sets, 10 to 100 chains, in Mahogany box 



1583 Set of Six ditto ...... 



1584 Six-inch Ivory Parallel Rules, German Silver Mounts . 



Each. 

 a. d. 



036 

 060 

 12 6 

 066 



16 6 



10 6 

 15 

 036 



10 6 

 060 

 030 



030 

 050 

 026 

 010 

 016 



5 





 i 2 



660 



220 

 1 10 



060 



