A few nice metal engraving images I found:
engraving
Image by Jman’s Skittles
Detail of Spanish-American War cannon
Image by jk079
Close-up showing the patina on the Spanish-American War cannon in Wright Park, Tacoma.
CNC Machining China Company
A few nice metal engraving images I found:
engraving
Image by Jman’s Skittles
Detail of Spanish-American War cannon
Image by jk079
Close-up showing the patina on the Spanish-American War cannon in Wright Park, Tacoma.