A Schwarz and sons, Holywell. An independant opticians established 1864.A Schwarz and Sons is an independent optometric practice. It was established in 1864 in Holywell, North Wales and since then has been run at the same premises by the same family for four generations.A Schwarz and Sons Opticians is located in the Holywell area of Flintshire. There are at least 2 other listings in the CH8 postcode area. Opticians in Flintshire CH8