| Home for sale in Frederick, CO. $825,000. Owner will carry financing. | nickgromicko.com | 825000 USD | — | — |
| Home for sale in Frederick, CO. 775,000. Owner will carry financing. | nickgromicko.com | 775000 USD | — | — |
| Home for sale in Frederick, CO. $774,000. Owner will carry financing. | nickgromicko.com | 774000 USD | — | — |
| Home for sale or rent in Firestone, CO. All new. Owner will finance. | nickgromicko.com | 750000 USD | — | — |
| For Sale: Best office building in Greeley, CO. $750,000.- owner will finance. | nickgromicko.com | 750000 USD | — | — |
| Home for sale Erie/Frederick: 4 bed, 1 office, full basement, 2-car garage, pool access. | nickgromicko.com | 695000 USD | — | — |
| Home for sale in Erie/Frederick, CO. 3-bed, 2.5-bath, 2-car garage, pool access. | nickgromicko.com | 650000 USD | — | — |
| Home for sale in Erie/Frederick. 3 bed, 2 bath, 2-car garage, one-floor, pool access. | nickgromicko.com | 585000 USD | — | — |
| 198-Acre Colorado Ranch for Sale - owner will finance | nickgromicko.com | 530500 USD | — | — |
| Buildable lot in Frederick, CO - $450,000 - includes water tap. Owner will carry financing. | nickgromicko.com | 450000 USD | — | — |
| The Nick Gromicko Collection of Coins and Medals Depicting Beautiful Women | nickgromicko.com | 175000 USD | — | — |
| 1934A $1,000 bill in 67 grade. | nickgromicko.com | 105000 USD | — | — |
| HITACHI 350LC Excavator | nickgromicko.com | 85000 USD | — | — |
| 1955 Oldsmobile 88 Rocket | nickgromicko.com | 45000 USD | — | — |
| PTO-powered Wood Chipper | nickgromicko.com | 25000 USD | — | — |
| Wagon | nickgromicko.com | 19000 USD | — | — |
| CASE 585 E All-Terrain Forklift | nickgromicko.com | 18000 USD | — | — |
| 5 Bills that Have Something Unusual in Common | nickgromicko.com | 7500 USD | — | — |
| High-top table made from a crankshaft and timing chain. | nickgromicko.com | 6500 USD | — | — |
| A Curiosity Regarding Race that I Discovered in a Pair of Old Banknotes | nickgromicko.com | 4000 USD | — | — |
| Farmall Tractor model B | nickgromicko.com | 3100 USD | — | — |
| CURRENTLY RENTED. New home for rent Erie/Frederick: 3-4 beds, 3.5 baths, separate family room, 5 acre fenced yard. | nickgromicko.com | 3000 USD | — | — |
| Germany Mi#812 SC#B202 Berlin Heroes Memorial Day Postmark Card 1942 | nickgromicko.com | 25 USD | — | — |