1960's Beechcraft Bonanza V35 Jewelry Collection

My husband's late uncle owned a Beechcraft Bonanza V-35 airplane. He managed to accumulate this collection of Bonanza V tailed jewelry. All pieces are gold toned metal, and some may be gold plated but we do not know for sure.
Included in this collection are:
- Tie clasp (photos 2 & 3). Inscribed on the clip is the word "Harvale"? Dimensions are 1 5/8 inches long by 1/4 inch tall. - Hat/lapel pin (photos 4 & 5). This is an enameled stick pin. The plane is red, white and blue with black windows. There are no markings. This pin is 1 1/4 inches long. - Pin (photos 6 & 7). This is a small gold pin with safety clasp. It has window and striping details. There is no marking. This pin is 7/8 inches long. - Stick Pin (photo 8). This is a small gold colored stick pin with window and stripe details. The pin back has the words "BALLOW REG'D" marked on it. The pin is 3.4 inches long. - Clip Earrings (photos 9 & 10). These gold colored earrings are 15/16 inches in diameter. Each has a small Bonanza V 35 centered on the front and the words "BEECHCRAFT BONANZA" marked on the back.
This would be a great collection for the Bonanza V tail lover!