AuthorMarkWDuff

United Kingdom

7
Sales
We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience. 5.0 (5)
7 months
on Etsy
We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience. 5.0 (5)
7
sales
7 months
on Etsy
7
Sales
We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience. 5.0 (5)
7 months
on Etsy
We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience. 5.0 (5)
7
sales
7 months
on Etsy
Mark W Duff

Contact shop owner

Mark W Duff

Reviews

5.0 (5)
Average item review
We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience.
Loading

About AuthorMarkWDuff

Home of Marsh the Penguin books and other items.

Sales 7
On Etsy since 2026

Home of Marsh the Penguin books and other items.

Welcome to the Home of Marsh the Penguin! (Signed Copies directly from the Author)

Shop policies

Last updated on

Accepted payment methods

Paypal Visa Mastercard Discover Apple Pay Klarna Giftcard
Accepts Etsy Gift Cards and Etsy Credits

Returns & exchanges

See item details for return and exchange eligibility.