"Berlin Technical Museum - Robert Machine"
"Berlin Technical Museum - Robert Machine"
"Berlin Technical Museum - Robert Machine"
"Berlin Technical Museum - Robert Machine"
"Berlin Technical Museum - Robert Machine"
"Berlin Technical Museum - Robert Machine"
"Berlin Technical Museum - Robert Machine"
"Berlin Technical Museum - Robert Machine"
"N.L.Robert, Portrait"
"Robert, English Patent sheet 1"
"Robert, English Patent sheet 2"
"Robert, Machine drawing, top elevation"
"Robert, Paper machine"
"Robert, Paper machine"
"Robert, Paper machine, cross section rollers"
"Robert, Paper machine, cross section rollers, delivery end"
"Robert, Paper Machine, cross sections, 1801 Patent"
"Robert, Paper machine, cross sections, 1801 Patent"
"Robert, Paper machine, end of vat, cross section by rollers"
"Robert, Paper machine, Ground plan"