How much variation is possible based on root stock? There have been several "Site Guest Believes this is Incorrectly Identified!" lately.
I would like someone to post pictures of stems with thorns (old growth and new growth), leaflets, stipules, hips if any, sepals, flower anatomy, etc, and find out if the variation in the photos is due to environmental conditions, root stock, soil, or if it was purchased with an incorrect label.
For example, my Madame Anisette does the same thing as this rose- it is labelled as a 32" grower and mine grow well over 6 feet in height. My flowers and canes look like they are on steroids. It is definitely Madame Anisette because the fragrance is a giveaway! My Lion's Rose grows to 5'. My Sweet Victoria as well. All these grow as if on steroids in my garden.
I wouldn't give it a second thought. There can be tremendous variation in blooms based on a wide range of factors. The criteria the commenter gave for doubting the photo--color, number of petals, height--are very poor indicators of whether a variety is correctly identified or not.
Why is this rose described as Hybrid tea? Delbard puts it to floribunda category (Espece: floribunda) - http://www.delbard-direct.fr/tous-nos-produits/rosiers/rosiers-a-grandes-fleurs/rosier-souvenir-de-louis-amade.html