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