Recently, collector Ronald Lee from California submitted a Proof Presidential dollar with weak edge lettering to PCGS.

Although this variety may not be very dramatic, there are dozens of collectors who aim to collect every variety in the Presidential dollar series. On business strike Presidential dollars, many errors have been found, including weak edge lettering (part of a letter missing), partial edge lettering (one or more letters missing), overlapped lettering (doubled letters over each other), inverted edge lettering (doubled lettering with a second set of inscriptions inverted over the first) and finally, the missing edge lettering coins. The edge lettering on these coins is applied with a Schuler Edge lettering machine or a wheel that impresses the edge inscriptions on the coins.

However, there have been fewer errors found on the Proof Presidential dollars since they are being monitored under tighter scrutiny and produced at much lower speeds. Unlike Business Strike dollars, the Proof Presidential dollar edges are struck by a three-segmented collar at the same time the obverse and reverse dies strike the coin.

Other errors on Proof Presidential dollar coins are found on the edge inscriptions. The wording is in the wrong order; the inscriptions read "E-Pluribus Unum In God We Trust" instead of "In God We Trust E-Pluribus Unum." These errors were caused by incorrect placement of the three segments on the collar. So far, not many have been reported.

Since Proof Presidential dollars are produced for collectors and by the highest standards, the recently reported weak edge lettering variety may be hard to find. However, collectors who purchased Presidential dollar proof sets should definitely check their sets for any possible weak edge lettering errors, out-of-order inscriptions or inverted inscriptions as these tend to bring a premium!