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-1 Thomas Ink poster
Both have lustraloy caps with chrome trim and have not been used outside the Parker factory
One pen with (3) interchangeable front ends in (3) different sizes measuring
Turns on with a tiny slide switch (shown in first photo below)
TIGHTENING & LOOSTENING THE BAND
Dual Loupe, 10x + 20x optic -1 Thomas Ink posterSINGLE HAND PIECE WITH 2 MAGNIFIERS. LARGER MAGNIFIER IS 10X 18mm. SMALLER SIZED MAGNIFIER IS 20X 12mm. LENGTH WHEN CLOSED IS 2" (51mm). FIVE ELEMENT LENS, WHICH MEANS THE LENS HAS 5 PEICES OF GLASS WITH TWO JOINED TOGETHER. THE USE OF MULTIPLE ELEMENTS ALLOWS FEW OPTICAL ABERATIONS THAN IS POSSIBLE WITH A SINGLE ELEMENT. THIS CREATES MORE ACURATE VISUALS AND A BETTER ABLILITY TO SEE DETAILS WITH LESS DISTORTION. Our best selling dual loupe!