We have just acquired this very rare Gerber Guardian ( Presentation ) Knife model #5811. Serial Number is 001179. Knife is in MINT condition with box, sheath, plastic bag and brochure. The knife has never been inserted into the sheath as I find no marks whatsoever on the insert opening. There were made by Gerber from 1981-85 and of course have been discontinued. The number made was very low as you rarely can find them for sale. Box shows some storage wear but is in tact. The fact that it was properly kept and stored make it even greater in value. Handle is all wood with brass pommel and Hilt. Blade is highly polished and carries the Gerber logo and Designed by R.W. Loveless. Extremely nice knife that was well cared for, a trait we are finding hard to acquire.