Currency symbols in plain text email

I was wondering if anyone can recommend the best way to show currency symbols in plain text email?

For example, I'm thinking of using the following:

GBP 49.50 rather than £49.50

USD 74.99 rather than $74.99

An email campaign I'm working on has an international audience - and I'm thinking that spelling out currency in letters will ensure consistent rendering across devices.

Thanks in advance for any tips.

Join 200,000 companies around the world that use Campaign Monitor to run email marketing campaigns that deliver results for their business.

Get started for free