I came across these vintage soda cap cabinet knobs on Amazon! https://www.amazon.com/Set-Vintage-Soda-Cabinet-Knobs/dp/B015U9LT3W/ref=sr_1_1_sspa?ie=UTF8&qid=1521990348&sr=8-1-spons&keywords=vintage+soda+cap+cabinet+knobs&psc=1
I came across these vintage soda cap cabinet knobs on Amazon! https://www.amazon.com/Set-Vintage-Soda-Cabinet-Knobs/dp/B015U9LT3W/ref=sr_1_1_sspa?ie=UTF8&qid=1521990348&sr=8-1-spons&keywords=vintage+soda+cap+cabinet+knobs&psc=1